The study investigates the transition process from a ground fire to a crown fire. The studies were carried out in seminatural conditions on the territory of the Base Experimental Complex (BEC) of the IAO SB RAS. Previously, reconstruction of the forest canopy was carried out. The emergence of a crown fire occurred due to the transition of a ground fire to the bottom layers and further to the crowns of trees. Non-contact diagnostic methods (IR thermography) were predominantly used to measure combustion front parameters.
This paper presents a short-term experimental results pressure surge effect on the pyrolysis plant combustible materials (PCM) zone. It was found that as a result of exposure there is the combustion flame mode interruption, causing a decrease in the PCM elements surface temperature involved in combustion, which during further forced cooling leads to a combustion complete cessation.
The use of shock waves as a source of intense impact on the combustion process, in particular, on a wildfire or man-made fire, has been known in science for several decades. The discontinuity surface of hydrodynamic functions, which is the front of the shock wave, can stop combustion, or intensify the fire situation. An experimental setup with shock tube was made to study the effect of shock waves. This article presents the study results of the impact of the charge energy characteristics on the shock tube characteristics.
The article presents the results of a series of mesoscale experiments to study wildfires and their impact on the atmosphere. A change in meteorological parameters, a significant increase in fluctuations of the refractive index, speed of sound and temperature in the vicinity of the experiment, which are a reflection of the occurrence of turbulent processes in the atmosphere, were established, experimental data were obtained on changes in the concentration of methane and carbon dioxide as a result of a fire, and data were obtained on the mechanism of occurrence of crown fire.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.